EP0449529A2
Expired / Lapsed
EP
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Image processing method and apparatus
Assignee: Canon Inc
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Filing: 1991-03-22
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Granted: —
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Expires: 2011-03-22
Abstract
Abstract An image processing method and apparatus encodes input image data, and performs processing using encoded image data. The method and apparatus can progressively encode input images, store and transmit the encoded images, and display a plurality of low-resolution images on one picture surface. <IMAGE>
Inventors
- 👤 Yuuichi C/O Canon Kabushiki Kaisha Bannai
- 👤 Tadashi C/O Canon Kabushiki Kaisha Yoshida
- 👤 Yasuji C/O Canon Kabushiki Kaisha Hirabayashi
- 👤 Hidefumi C/O Canon Kabushiki Kaisha Oosawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 20:16
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/387; H04N1/3872; H04N1/3873; H04N1/3875; G; G06; G06T; G06T3/00; G06T3/40; G06T3/4007; H04N1/32; H04N1/32101; H04N1/32128; H04N1/41; H04N1/411; H04N1/413; H04N1/417; H04N1/4172; H04N1/32106; H04N1/32112; H04N1/32122; H04N2201/00; H04N2201/32; H04N2201/3201; H04N2201/3202; H04N2201/3225; H04N2201/3226; H04N2201/3271; H04N2201/3274; H04N2201/3277
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
56 words
An image processing method comprising the steps of: progressively encoding input image data to provide encoded image data including a plurality of low-resolution image data; storing the plurality of low-resolution image data among the encoded image data; and forming a plurality of low-resolution images on one picture surface according to the stored plurality of image data.
Claim 2
Dependent Claim
18 words
A method according to Claim 1, wherein said encoding is performed by repeatedly reducing the input image data.
Claim 3
Dependent Claim
21 words
A method according to Claim 2, wherein said encoding is performed separately for the input image data and reduced image data.
Claim 4
Dependent Claim
21 words
A method according to Claim 1, wherein additional information is stored together with the low-resolution image data in said storing step.
Claim 5
Dependent Claim
16 words
A method according to Claim 1, wherein said image formation is performed on a display unit.
Claim 6
Dependent Claim
14 words
A method according to Claim 1, wherein said image formation is performed on paper.
Claim 7
Dependent Claim
71 words
An image processing apparatus comprising: input means for inputting image data; encoding means for progressively encoding said image data to provide encoded data having respective resolutions; memory means for storing said encoded image data in accordance with the resolution of the encoded image data; image forming means for forming a plurality of images corresponding to encoded image data having a common resolution stored in said memory means on one picture surface.
Claim 8
Dependent Claim
25 words
An apparatus according to Claim 7, wherein said input means comprises an image input device for photoelectrically reading and inputting an image of an original.
Claim 9
Dependent Claim
22 words
An apparatus according to Claim 7, wherein said encoding means comprises a plurality of encoders for encoding image data having different resolutions.
Claim 10
Dependent Claim
25 words
An apparatus according to Claim 7, wherein said memory means stores a plurality of low-resolution encoded image data corresponding to a plurality of respective images.
Claim 11
Dependent Claim
17 words
An apparatus according to Claim 7, wherein said image forming means forms images on a display unit.
Claim 12
Dependent Claim
15 words
An apparatus according to Claim 7, wherein said image forming means forms images on paper.
Claim 13
Dependent Claim
30 words
An image processing method comprising the steps of: reducing an original image a plurality of times to output a reduced image; and encoding said original image and said reduced image.
Claim 14
Dependent Claim
17 words
A method according to Claim 13, wherein said original image and said reduced image are independently encoded.
Claim 15
Dependent Claim
19 words
A method according to Claim 13, wherein said original image and said reduced image are encoded by entropy encoding.
Claim 16
Dependent Claim
21 words
A method according to Claim 13, further comprising the step of storing the encoded original image and the encoded reduced image.
Claim 17
Dependent Claim
24 words
A method according to Claim 13, further comprising the step of decoding the encoded original image and the encoded reduced images to form images.
Claim 18
Dependent Claim
21 words
A method according to Claim 13, further comprising the step of transmitting the encoded original image and the encoded reduced image.
Claim 19
Dependent Claim
78 words
An image data communication apparatus comprising: input means for inputting image data; reduction means for reducing the image data input by said input means; memory means for storing the image data input by said input means and the reduced image data reduced by said reduction means; transmitting means for transmitting the image data stored in said memory means; and image forming means for forming an image in accordance with the reduced image data stored in said memory means.
Claim 20
Dependent Claim
25 words
An apparatus according to Claim 19, wherein said input means comprises reading means for sequentially reading images of an original comprising a plurality of sheets.
Claim 21
Dependent Claim
36 words
An apparatus according to Claim 19, further comprising encoding means for independently encoding the image data and the reduced image data stored in said memory means, and wherein said transmitting means transmits the encoded image data.
Claim 22
Dependent Claim
13 words
An apparatus according to Claim 20, wherein said encoding means performs entropy encoding.
Claim 23
Dependent Claim
32 words
An apparatus according to Claim 19, wherein said image forming means forms an image in accordance with the reduced image data and information relating to the transmission of the transmitted image data.
Claim 24
Dependent Claim
17 words
An apparatus according to Claim 23, wherein said information includes address information and a time of transmission.
Claim 25
Dependent Claim
21 words
An apparatus according to Claim 19, wherein said image forming means forms a plurality of reduced images within one picture surface.
Claim 26
Dependent Claim
79 words
An image data communication apparatus comprising: input means for inputting image data; reduction means for reducing the image data input by said input means; memory means for storing the image data input by said input means; transmitting means for transmitting the image data stored in said memory means; and image forming means for forming an image in accordance with the reduced image data reduced by said reduction means with information relating to the transmission of the transmitted image data.
Claim 27
Dependent Claim
25 words
An apparatus according to Claim 26, wherein said input means comprises reading means for sequentially reading images of an original comprising a plurality of sheets.
Claim 28
Dependent Claim
20 words
An apparatus according to Claim 26, further comprising encoding means for encoding the image data stored in said memory means.
Claim 29
Dependent Claim
17 words
An apparatus according to Claim 26, wherein said information includes address information and a time of transmission.
Claim 30
Dependent Claim
21 words
An apparatus according to Claim 26, wherein said image forming means forms a plurality of reduced images within one picture surface.
Claim 31
Dependent Claim
54 words
An image data communication apparatus comprising: receiving means for receiving image data; memory means for storing the image data received by said receiving means; and image forming means for forming a reduced image in accordance with the image data stored in said memory means with information relating to the communication of the image data.
Claim 32
Dependent Claim
15 words
An apparatus according to Claim 31, wherein said receiving means receives progressively encoded image data.
Claim 33
Dependent Claim
20 words
An apparatus according to Claim 31, wherein said information includes a time of reception, and information relating to a transmitter.
Claim 34
Dependent Claim
17 words
An apparatus according to Claim 31, wherein said image forming means forms a plurality of reduced images.
Claim 35
Dependent Claim
42 words
An apparatus according to Claim 34, further comprising selection means for selecting at least one of said reduced images, and wherein said image forming means forms an image using image data stored in said memory means corresponding to the selected reduced image.
References Cited (Backward Citations)
No citation records indexed.
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